MC Inside MC logo lights up the Bottrop skyline Page 3 MC News Bridge repair under tough conditions Page 5 MC Innovation New concrete replacement for hydraulic structures Page 13 MC News Artistic fair-faced concrete in Reykjavik Page 14 THE MAGAZINE FOR EMPLOYEES AND CUSTOMERS OF MC-BAUCHEMIE 2-2018 3D concrete printing MC Report A brave new world of building Pages 8 - 10
3D concrete printing
Apr 07, 2023
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MC News
MC Innovation
MC News
THE MAGAZINE FOR
EMPLOYEES AND CUSTOMERS
A brave new world of building Pages 8 - 10
2 | MC aktiv 2_2018
Am Kruppwald 1–8
www.mc-bauchemie.com
[email protected]
Germany
(DBFL) at TU Braunschweig university of sci-
ence and technology, a digitally controlled
machining centre that enables coordinated
operation of a 5-axis CNC portal milling ma-
chine and an integrated heavy-duty robot
with a total of nine degrees of freedom.
Here, various robot-supported techniques
rically complex, three-dimensional concrete
nology know-how and product solutions
from MC-Bauchemie making an essential
contribution.
Photo: ITE, TU Braunschweig
both mobile and desktop. I believe we have succeeded in this quest.
This issue of our MC aktiv features an exciting range of products and
solutions that have enabled us to contribute to the success of con-
struction and maintenance projects worldwide. As ever, I am
delighted to commend this edition to you, which closes with a
feature under the “Personnel” heading that underlines the impor-
tance the company attaches to attracting and developing new talent.
I feel sure that once again you will find plenty to interest you in this
edition of MC aktiv and I wish you an enjoyable read!
Kind regards,
Dr.-Ing. Claus-M. Müller
PS: As I am sure you are aware, we can only present a small selection of features in any one issue of MC aktiv. If you would like to be kept more regularly up to date with MC’s activities, please follow us on Facebook, LinkedIn or Xing!
Building with a 3D printer may
have sounded like the stuff of
fantasy two decades ago, but
today it is already a reality. Over
the last 15 years, research projects
around the world have been
testing 3D concrete printing
progress made towards process
concrete technologists are making
their own contribution with two research projects at the universities of
science and technology TU Braunschweig and TU Dresden. You can read
more in this edition’s MC Report.
Digital communication is also central to future success, which is why
we are delighted to announce that our new website went live this June,
replacing our previous site which had served us faithfully for the past
seven years. Our goal was to create a modern, technically and aestheti-
cally appealing digital presence, allowing our users to access information
on our products, solutions and the company quickly and intuitively via
Dear Reader,
MC Editorial
MC Inside 3 MC logo lights up the Bottrop skyline New website goes live
MC runs
MC News 4 A new national stadium fit for the Champions League For the new National Stadium in Bratislava, the client specified concrete surfaces featuring both functional quality and the highest level of aesthetic appeal.
5 Bridge repair under tough conditions The rehabilitation of a bridge in Germany’s Saarland required an extremely tight timeframe, with special MC products employed for sealing the caps and deck panels.
6 Rehabilitation of the potable water tank in Lozenets Two chambers of a potable water tank in Bulgaria required essential repair and refurbishment of their ceilings and walls.
7 MC-FastKick – a cinema success Thanks to MC-Fastkick 111, MC's new hardening accelerator, a major multiplex cinema in Den Bosch in the Netherlands was finished and able to open on time – despite a very ambitious deadline.
11 Successful highway development with Nafuflex Thick bituminous coating systems from MC are being used on a large scale for the extension of the route to Haifa on the Mediterranean coast.
14 Artistic fair-faced concrete in Reykjavik The fair-faced concrete of a new build in Iceland’s capital city was visually upgraded and protected with products from MC.
Wonderfully refurbished A poorly concreted new building in Linz, Austria, was given a fine facelift with concrete replace- ment systems from MC.
MC Report 8 3D concrete printing: A brave new world of building As recently as the start of this decade, 3D concrete printing seemed like a fanciful blend of science fiction and niche technology for a select few com- panies. But things have since changed – dramat- - ically. Today, it’s not just construction compo- nents that can be “printed”. Now, 3D concrete printing can be used to complete entire buildings, with MC's concrete technology know-how widely sought after for current research projects into the technology.
MC Innovation 12 New rapid screed New finish coatings
13 New concrete replacement for hydraulic structures
MC Personnel 15 Welcome to the team Trainees starting at MC Creative concrete workshop on Girls’ Day 2018
3MC aktiv 2_2018 |
MC PersonaliaMC NewsMC InsideMC Inside
MC employees aged 30 – 50 ran in teams made up from various divisions,
once again impressively demonstrating what a great unifier sport can be,
fostering inter-generational team spirit and reaching beyond departmen-
tal boundaries. And the results achieved were highly commendable: Our
TopSpeed team achieved 6th place in the Mixed Relay ranking, overcoming
a demanding elevation profile with an outstanding time of 3:46:09 hours.
Just behind them, Team Exzellent came in 8th with 3:57:48 hours. And the
PowerFlow team reached the finishing line in 20th place after 4:12:44 hours.
Mid-June saw us go online with our new website in both English and German.
On 27 May 2018, three MC teams participated in the 6th VIVAWEST Marathon and achieved excellent times in the scorching summer heat.
The aim was to create a modern, interactive and aesthetically pleasing
digital experience. One that helped customers, business partners and
stakeholders to more readily access information and content about MC,
our service and our product portfolio from both their desktop PCs and –
critically – their mobile devices. And we think we have succeeded in this
endeavour. We offer users various entry options while affording them even
faster, more reliable access to the right solution, the right products and
the right data sheets. If you haven't done it yet, please visit our website
and give us your feedback! :-)
New website goes live
Your link to our homepage www.mc-bauchemie.com
From April this year, the 54 metre tall MC powder tower in Bottrop has featured an MC logo that is visible from miles around.
MC’s 54 metre high powder tower makes an immediate impact on
anyone who passes Bottrop via the A42 motorway or approaches
the Am Kruppwald industrial area. Together with the Tetrahedron
on the slagheap on Beckstrasse, it dominates the southern Bottrop
skyline. In the first quarter of this year, MC installed a 20 by 4 metre
MC logo on one side of the tower at a height of around 50 metres,
ensuring that it can be seen from quite a distance. MC commis-
sioned an experienced team of industrial climbers who, little by
little and whenever the weather allowed, firstly installed the sub-
structure and then the letters of the MC slogan "Be sure. Build sure.”
Finally, the MC logo was installed at this dizzy height during winter
temperatures dipping below 0 °C.
The oversized logo shines at night and enhances the importance of
MC’s powder tower as a stand-out landmark in Bottrop South. "In the
truest sense of the word, we have created the largest ‘billboard’ and
thus the largest-ever advertisement featuring MC-Bauchemie – and
are absolutely delighted with the impression it creates," says a satis-
fied Nicolaus Müller, Managing Director of MC-Bauchemie.
MC logo lights up the Bottrop skyline
MC aktiv 2_2018 | 3
Slovakia’s new national sta- dium is currently being built in its capital, Bratislava, with its precast concrete elements con- structed using MC-PowerFlow 3130 and Ortolan Premium 702 to ensure the highest standards of quality and appearance are achieved.
The Štadión Tehelnépole, which
to the highest possible UEFA sta-
dium category of 4. This makes it
suitable for international matches,
being erected at a cost of around
75 million euros on the same site as
the old stadium, which was demol-
ished in 2013. The clients are the
Slovak state and the local soccer
club Slovan Bratislava, which will play
its home matches at the National
Stadium in the future.
Structure made of precast components With preparatory work on the con-
struction site commencing as early
as 2016, production of the stadium's
precast elements began in 2017.
The new building is made entirely
of precast concrete components,
The client specifications are aligned
not only to functional quality but
also to ensuring the highest aes-
thetic appeal of the concrete sur-
faces. The Slovakian subsidiary of
STRABAG SE, based in Bratislava,
won the tender for the production
of the prefabricated parts and con-
sulted MC's concrete technologists
Getting the right mix Included in the concrete to ensure
the required properties, MC-Pow-
MC polymer technology. Through
ing agents, its liquefying effect sets
in after just a short mixing time.
MC-PowerFlow 3130 is free of cor-
rosion-promoting components,
development, enabling high-den-
advantages, MC-PowerFlow 3130
tion of exposed concrete surfaces
and high-performance, high-resist-
precast components that it really
comes into its own.
produced by the interaction of
MC-PowerFlow 3130 with the con-
crete release agent Ortolan Pre-
mium 702, which has been specially
developed for the production of
high-quality exposed and fair-faced
Ortolan Premium 702 can be used
on smooth, non-absorbent form-
80 °C. It is easy to spray and forms
a thin film on the surface. It also
protects and helps maintain steel
formwork. Thanks to its excellent
release effect, Ortolan Premium 702
reduces pores and cavities to leave
a surface of exceptional quality.
MC's concrete cosmetics are also being
used on the construction site. This
ensures that any small defects occur-
ing during transportation or assembly
are quickly and effectively rectified.
The aim is to create an appealing
overall visual effect that will delight
both the clients and future specta-
tors in equal measure.
sists entirely of precast concrete elements
manufactured with high-performance su-
A national stadium fit for the Champions League
MC News
[email protected]
The new national arena in Bratislava is set to be awarded the highest UEFA stadium category, qualifying it as a venue for international soccer matches, as well as European and Champions League games.
4 | MC aktiv 2_2018
[email protected]
In Germany’s Saarland region near the town of Merzig, a bridge on the A8 motorway was found to be in urgent need of rehabilitation. Due to an extremely tight timeframe, two special MC products were used for sealing the caps and deck panels.
The winter months make rehabili-
tating structures a challenge, espe-
cially when it comes to road const-
ruction. Any restrictions to the flow
of traffic need to be kept as brief
as possible, yet quality and dura-
bility are essential requirements
unfavourable weather conditions.
way bridge near Merzig-Wellingen in
Germany’s Saarland region, sched-
uled by Landesbetrieb für Straßenbau
(the state road construction com-
pany) for February and March 2018,
was no exception. Temperatures of
2 to 3° C, invariably below the dew
point, high humidity in the Saar valley
and the application of materials on
a dew-damp substrate meant that
conditions for execution of the work
were far from ideal.
Simple and safe sealing of caps and deck panels The bridge repair work included the
renewal of the waterproofing under
the caps and along the deck over an
area of around 1,100 m². A system
tested in accordance with German
code ZTV ING Part 7 Section 1 had
to be used in order to enable sim-
ple, safe and time-saving applica-
tion on the construction site without
the need for additional hardeners or
accelerators. The system also had to
facilitate the subsequent torch-weld-
long overcoating times.
New development with outstanding properties Given these constraints, the spe-
cialist application company Köh-
Trier, Germany, opted for MC’s new,
high-temperature-resistant specialty
as the under-cap sealant. It is ap-
proved for priming, sealing and scratch
filling under asphalt pavements on
the concrete of roadway panels and
parking decks in accordance with
German code TL/TP-BEL-EP; it also
cures quickly, largely regardless of
moisture and temperature influences.
plete waterproofing campaign to be
carried out in a single day. After the
substrate had been prepared by shot
blasting, the caps were primed with
MC-DUR LF 680 and subsequently
sealed in a further operation involv-
ing the same material. Since the
overcoating waiting time is only
two and a half hours even at 2° C,
the waterproofing membranes could
almost all known bitumen mem-
branes is a further advantage.
Patrick Eilens, senior manager of Köh-
ler Sonderbau GmbH & Co. KG, said:
"Besides the very good properties,
we also found the easy handling of
MC-DUR LF 680 particularly impres-
sive.” Like a conventional epoxy resin,
it can be applied without the addi-
tion of catalysts or other auxiliaries
and offers obvious advantages over
three-component products when
As the weather returned to normal,
the epoxy resin MBC-VT 116 from MC
was used for further waterproofing
work on a deck surface measuring
around 4,000 m². With this combina-
tion, Köhler Sonderbau was able to
keep to the tight construction sched-
ule despite the unfavourable condi-
tions, completing the refurbishment
all involved.
[email protected] [email protected]
Due to temperatures of 2 to 3° C and high humidity during the repair work, MC’s new special polyurethane resin, MC-DUR LF 680 was used to replace the bridge waterproofing membrane.
5MC aktiv 2_2018 |
MC PersonaliaMC News
largely regardless of moisture and tem-
perature influences.
There were distinct signs of increasing deterioration in the walls and ceilings of two cham- bers of the potable water tank serving the district of Lozenets in the Bulgarian capital Sofia. The operator therefore decided to carry out a comprehensive overhaul of the facility, placing particular reliance on the per- formance capabilities of the MC-RIM PW product system.
The 90-year-old potable water sto-
rage tank in Sofia boasts an 18,500 m³
capacity and a turbulent past. Its
chambers defied the bombings of
the Second World War and survived
numerous earthquakes in the region
unscathed. But now the sands of time
had taken their toll, with the structure
so dilapidated that a thorough rehabil-
itation campaign was imperative for
its survival. MC had already coopera-
ted successfully in the past on the Rila
Water Supply Pipelines Project with
Sofiiska Voda, the local supplier and
operator of the facility, and had been
invited back in 2015 for an inspection
of the potable water tank together with
another specialist supplier.
numerous cracks, some of which had
already developed leaks and were water-
bearing. There were also fractured and
spalled areas and exposed reinforce-
ment, especially in the ceiling area.
Discounting a repair system based on
waterproof PE panels suggested by the
competitor bidder, the project plan-
ning company TIA Engineering and
representatives of Sofiiska Voda opted
for M C 's solution proposals instead.
Decisive factors included the prevailing
application conditions of only 6 – 8°
C due to the high humidity and low
ambient temperatures prevailing, and
panels in the caverns with their many
columns and different wall and ceiling
shapes presented a huge challenge.
Waterproofing perfection In June 2016, the chosen applicator
Opel Neshev started work on the rehab
project. The cracks were repaired using
MC-Injekt GL-95 TX, a low-viscosity, soft
and flexible sealing injection resin offer-
ing easy application at low temper-
atures. This meets the requirements
issued by the UBA (German Environ-
mental Agency) for repair systems in
contact with potable water and is best
suited for sealing joints, cracks, cavities
in masonry and concrete with perma-
nent water contact.
Hygienically sound For the further repair of the ceilings and
walls of the chambers, the project team
opted for the MC-RIM PW 20 concrete
replacement system and MC-RIM PW
10 special protective coating, which
have proven effectiveness in providing
enduring protection in the potable water
sector. The cement-bonded concrete
the wall and ceiling surfaces and in-
crease the concrete coverage. This was
followed by a finish with the mineral
surface protection coating MC-RIM
to water yet open to vapour diffusion.
Both chambers were thus successively
and successfully repaired to the abso-
lute satisfaction of the customer within
a period of just three months.
The cracks in the potable water tank were
repaired with MC-Injekt GL-95 TX, the
low-viscosity, soft-elastic injection resin
[email protected] [email protected]
The 90-year-old potable water storage tank in Sofia has been made fit for the future with proven injection and repair systems from MC.
MC AktuellMC News
[email protected] [email protected]
The 90-year-old potable water storage tank in Sofia has been made fit for the future with proven injection and repair systems from MC.
In Den Bosch in the Netherlands, a 7-screen multiplex cinema has been built to accommodate a total audience of around 1,000 people. Despite a very ambitious schedule, the cinema was able to keep to its opening date in summer 2018 – thanks not least to MC-FastKick 111, MC’s new hardening accelerator.
Kinepolis Den Bosch is a super-modern
multiplex cinema equipped with cut-
ting-edge laser projection techno-
Belgium, Canada, the Netherlands,
France, Spain, Luxembourg, Switzer-
Bosch was planned against a very
ambitious schedule. The client was
under time pressure and required con-
cretes with rapid strength develop-
ment so that the cast components
could be stripped on site and the con-
crete slabs smoothed as quickly and
early as possible. The chosen ready-
mixed concrete manufacturer Voets-
concrete formulation to help accel-
erate the construction process and
improve productivity. The challenge
consistency as it travelled from the
mixing plant to the installation site
and then to achieve rapid strength
development within the first few hours
to allow early smoothing.
MC-FastKick 111, a product launched
in 2017. The chloride-free hardening
accelerator initially has a strong lique-
fying effect, but then ensures rapid
hardening with controlled reduction
mortar. In addition to increased early
strength values, the new hardening
accelerator from MC also results in
higher final strengths due to a special
activation mechanism which causes
sion of up to two classes without
influencing the stiffening behaviour.
exerts a positive effect on the crystal
growth of the calcium silicate hydrate
phases in concrete. This leads to an
appreciable increase in the crystalli-
sation rate and significantly increas-
ed early strength values – without
negatively affecting the other con-
crete properties. The result is an early-
setting, high-strength concrete ideal
perties also make MC-FastKick 111
the perfect choice for winter con-
struction projects and for the precast
industry, where the major reduction
in cycle times is an obvious bene-
fit. The challenge during construc-
tion in Den Bosch was successfully
met thanks to these MC admixtures,
enabling the multiplex to open its
doors on June 25, 2018 as planned.
MC-FastKick – a cinema success
111, the state-of-the-art multiplex cinema
in Den Bosch was able to open as planned
on June 25, 2018.
The rapid setting and the increased early and final strengths achieved with MC-FastKick make it the first choice for both precast production and winter construction projects as well as
for projects with highly ambitious schedules like the construction of the large multiplex cinema in Den Bosch.
[email protected] [email protected]
7MC aktiv 2_2018 |
© Xavier den Dekker
While it may appear rather strange at
first glance, 3D printing is one of the
major technology-related topics of
tors worldwide are looking for new
concepts to help create a building
process that is as quick, cost-effec-
tive and environmentally friendly as
possible. This applies as much to the
sprawling metropolises of industri-
geoning megacities of developing
in Germany, there are a significant
number of research and develop-
ment projects aimed at creating a
3D concrete printing process suitable
for mass production. For example,
"Beton3D-Druck” [Concrete 3D Print-
tion process as part of the “Zukunft-
Bau” [Future of Building] funding pro-
gramme run by the Federal Institute
for Research on Building, Urban Affairs
and Spatial Development. MC’s spe-
cialists are providing concrete tech-
nology know-how and support to…
MC Innovation
MC News
THE MAGAZINE FOR
EMPLOYEES AND CUSTOMERS
A brave new world of building Pages 8 - 10
2 | MC aktiv 2_2018
Am Kruppwald 1–8
www.mc-bauchemie.com
[email protected]
Germany
(DBFL) at TU Braunschweig university of sci-
ence and technology, a digitally controlled
machining centre that enables coordinated
operation of a 5-axis CNC portal milling ma-
chine and an integrated heavy-duty robot
with a total of nine degrees of freedom.
Here, various robot-supported techniques
rically complex, three-dimensional concrete
nology know-how and product solutions
from MC-Bauchemie making an essential
contribution.
Photo: ITE, TU Braunschweig
both mobile and desktop. I believe we have succeeded in this quest.
This issue of our MC aktiv features an exciting range of products and
solutions that have enabled us to contribute to the success of con-
struction and maintenance projects worldwide. As ever, I am
delighted to commend this edition to you, which closes with a
feature under the “Personnel” heading that underlines the impor-
tance the company attaches to attracting and developing new talent.
I feel sure that once again you will find plenty to interest you in this
edition of MC aktiv and I wish you an enjoyable read!
Kind regards,
Dr.-Ing. Claus-M. Müller
PS: As I am sure you are aware, we can only present a small selection of features in any one issue of MC aktiv. If you would like to be kept more regularly up to date with MC’s activities, please follow us on Facebook, LinkedIn or Xing!
Building with a 3D printer may
have sounded like the stuff of
fantasy two decades ago, but
today it is already a reality. Over
the last 15 years, research projects
around the world have been
testing 3D concrete printing
progress made towards process
concrete technologists are making
their own contribution with two research projects at the universities of
science and technology TU Braunschweig and TU Dresden. You can read
more in this edition’s MC Report.
Digital communication is also central to future success, which is why
we are delighted to announce that our new website went live this June,
replacing our previous site which had served us faithfully for the past
seven years. Our goal was to create a modern, technically and aestheti-
cally appealing digital presence, allowing our users to access information
on our products, solutions and the company quickly and intuitively via
Dear Reader,
MC Editorial
MC Inside 3 MC logo lights up the Bottrop skyline New website goes live
MC runs
MC News 4 A new national stadium fit for the Champions League For the new National Stadium in Bratislava, the client specified concrete surfaces featuring both functional quality and the highest level of aesthetic appeal.
5 Bridge repair under tough conditions The rehabilitation of a bridge in Germany’s Saarland required an extremely tight timeframe, with special MC products employed for sealing the caps and deck panels.
6 Rehabilitation of the potable water tank in Lozenets Two chambers of a potable water tank in Bulgaria required essential repair and refurbishment of their ceilings and walls.
7 MC-FastKick – a cinema success Thanks to MC-Fastkick 111, MC's new hardening accelerator, a major multiplex cinema in Den Bosch in the Netherlands was finished and able to open on time – despite a very ambitious deadline.
11 Successful highway development with Nafuflex Thick bituminous coating systems from MC are being used on a large scale for the extension of the route to Haifa on the Mediterranean coast.
14 Artistic fair-faced concrete in Reykjavik The fair-faced concrete of a new build in Iceland’s capital city was visually upgraded and protected with products from MC.
Wonderfully refurbished A poorly concreted new building in Linz, Austria, was given a fine facelift with concrete replace- ment systems from MC.
MC Report 8 3D concrete printing: A brave new world of building As recently as the start of this decade, 3D concrete printing seemed like a fanciful blend of science fiction and niche technology for a select few com- panies. But things have since changed – dramat- - ically. Today, it’s not just construction compo- nents that can be “printed”. Now, 3D concrete printing can be used to complete entire buildings, with MC's concrete technology know-how widely sought after for current research projects into the technology.
MC Innovation 12 New rapid screed New finish coatings
13 New concrete replacement for hydraulic structures
MC Personnel 15 Welcome to the team Trainees starting at MC Creative concrete workshop on Girls’ Day 2018
3MC aktiv 2_2018 |
MC PersonaliaMC NewsMC InsideMC Inside
MC employees aged 30 – 50 ran in teams made up from various divisions,
once again impressively demonstrating what a great unifier sport can be,
fostering inter-generational team spirit and reaching beyond departmen-
tal boundaries. And the results achieved were highly commendable: Our
TopSpeed team achieved 6th place in the Mixed Relay ranking, overcoming
a demanding elevation profile with an outstanding time of 3:46:09 hours.
Just behind them, Team Exzellent came in 8th with 3:57:48 hours. And the
PowerFlow team reached the finishing line in 20th place after 4:12:44 hours.
Mid-June saw us go online with our new website in both English and German.
On 27 May 2018, three MC teams participated in the 6th VIVAWEST Marathon and achieved excellent times in the scorching summer heat.
The aim was to create a modern, interactive and aesthetically pleasing
digital experience. One that helped customers, business partners and
stakeholders to more readily access information and content about MC,
our service and our product portfolio from both their desktop PCs and –
critically – their mobile devices. And we think we have succeeded in this
endeavour. We offer users various entry options while affording them even
faster, more reliable access to the right solution, the right products and
the right data sheets. If you haven't done it yet, please visit our website
and give us your feedback! :-)
New website goes live
Your link to our homepage www.mc-bauchemie.com
From April this year, the 54 metre tall MC powder tower in Bottrop has featured an MC logo that is visible from miles around.
MC’s 54 metre high powder tower makes an immediate impact on
anyone who passes Bottrop via the A42 motorway or approaches
the Am Kruppwald industrial area. Together with the Tetrahedron
on the slagheap on Beckstrasse, it dominates the southern Bottrop
skyline. In the first quarter of this year, MC installed a 20 by 4 metre
MC logo on one side of the tower at a height of around 50 metres,
ensuring that it can be seen from quite a distance. MC commis-
sioned an experienced team of industrial climbers who, little by
little and whenever the weather allowed, firstly installed the sub-
structure and then the letters of the MC slogan "Be sure. Build sure.”
Finally, the MC logo was installed at this dizzy height during winter
temperatures dipping below 0 °C.
The oversized logo shines at night and enhances the importance of
MC’s powder tower as a stand-out landmark in Bottrop South. "In the
truest sense of the word, we have created the largest ‘billboard’ and
thus the largest-ever advertisement featuring MC-Bauchemie – and
are absolutely delighted with the impression it creates," says a satis-
fied Nicolaus Müller, Managing Director of MC-Bauchemie.
MC logo lights up the Bottrop skyline
MC aktiv 2_2018 | 3
Slovakia’s new national sta- dium is currently being built in its capital, Bratislava, with its precast concrete elements con- structed using MC-PowerFlow 3130 and Ortolan Premium 702 to ensure the highest standards of quality and appearance are achieved.
The Štadión Tehelnépole, which
to the highest possible UEFA sta-
dium category of 4. This makes it
suitable for international matches,
being erected at a cost of around
75 million euros on the same site as
the old stadium, which was demol-
ished in 2013. The clients are the
Slovak state and the local soccer
club Slovan Bratislava, which will play
its home matches at the National
Stadium in the future.
Structure made of precast components With preparatory work on the con-
struction site commencing as early
as 2016, production of the stadium's
precast elements began in 2017.
The new building is made entirely
of precast concrete components,
The client specifications are aligned
not only to functional quality but
also to ensuring the highest aes-
thetic appeal of the concrete sur-
faces. The Slovakian subsidiary of
STRABAG SE, based in Bratislava,
won the tender for the production
of the prefabricated parts and con-
sulted MC's concrete technologists
Getting the right mix Included in the concrete to ensure
the required properties, MC-Pow-
MC polymer technology. Through
ing agents, its liquefying effect sets
in after just a short mixing time.
MC-PowerFlow 3130 is free of cor-
rosion-promoting components,
development, enabling high-den-
advantages, MC-PowerFlow 3130
tion of exposed concrete surfaces
and high-performance, high-resist-
precast components that it really
comes into its own.
produced by the interaction of
MC-PowerFlow 3130 with the con-
crete release agent Ortolan Pre-
mium 702, which has been specially
developed for the production of
high-quality exposed and fair-faced
Ortolan Premium 702 can be used
on smooth, non-absorbent form-
80 °C. It is easy to spray and forms
a thin film on the surface. It also
protects and helps maintain steel
formwork. Thanks to its excellent
release effect, Ortolan Premium 702
reduces pores and cavities to leave
a surface of exceptional quality.
MC's concrete cosmetics are also being
used on the construction site. This
ensures that any small defects occur-
ing during transportation or assembly
are quickly and effectively rectified.
The aim is to create an appealing
overall visual effect that will delight
both the clients and future specta-
tors in equal measure.
sists entirely of precast concrete elements
manufactured with high-performance su-
A national stadium fit for the Champions League
MC News
[email protected]
The new national arena in Bratislava is set to be awarded the highest UEFA stadium category, qualifying it as a venue for international soccer matches, as well as European and Champions League games.
4 | MC aktiv 2_2018
[email protected]
In Germany’s Saarland region near the town of Merzig, a bridge on the A8 motorway was found to be in urgent need of rehabilitation. Due to an extremely tight timeframe, two special MC products were used for sealing the caps and deck panels.
The winter months make rehabili-
tating structures a challenge, espe-
cially when it comes to road const-
ruction. Any restrictions to the flow
of traffic need to be kept as brief
as possible, yet quality and dura-
bility are essential requirements
unfavourable weather conditions.
way bridge near Merzig-Wellingen in
Germany’s Saarland region, sched-
uled by Landesbetrieb für Straßenbau
(the state road construction com-
pany) for February and March 2018,
was no exception. Temperatures of
2 to 3° C, invariably below the dew
point, high humidity in the Saar valley
and the application of materials on
a dew-damp substrate meant that
conditions for execution of the work
were far from ideal.
Simple and safe sealing of caps and deck panels The bridge repair work included the
renewal of the waterproofing under
the caps and along the deck over an
area of around 1,100 m². A system
tested in accordance with German
code ZTV ING Part 7 Section 1 had
to be used in order to enable sim-
ple, safe and time-saving applica-
tion on the construction site without
the need for additional hardeners or
accelerators. The system also had to
facilitate the subsequent torch-weld-
long overcoating times.
New development with outstanding properties Given these constraints, the spe-
cialist application company Köh-
Trier, Germany, opted for MC’s new,
high-temperature-resistant specialty
as the under-cap sealant. It is ap-
proved for priming, sealing and scratch
filling under asphalt pavements on
the concrete of roadway panels and
parking decks in accordance with
German code TL/TP-BEL-EP; it also
cures quickly, largely regardless of
moisture and temperature influences.
plete waterproofing campaign to be
carried out in a single day. After the
substrate had been prepared by shot
blasting, the caps were primed with
MC-DUR LF 680 and subsequently
sealed in a further operation involv-
ing the same material. Since the
overcoating waiting time is only
two and a half hours even at 2° C,
the waterproofing membranes could
almost all known bitumen mem-
branes is a further advantage.
Patrick Eilens, senior manager of Köh-
ler Sonderbau GmbH & Co. KG, said:
"Besides the very good properties,
we also found the easy handling of
MC-DUR LF 680 particularly impres-
sive.” Like a conventional epoxy resin,
it can be applied without the addi-
tion of catalysts or other auxiliaries
and offers obvious advantages over
three-component products when
As the weather returned to normal,
the epoxy resin MBC-VT 116 from MC
was used for further waterproofing
work on a deck surface measuring
around 4,000 m². With this combina-
tion, Köhler Sonderbau was able to
keep to the tight construction sched-
ule despite the unfavourable condi-
tions, completing the refurbishment
all involved.
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Due to temperatures of 2 to 3° C and high humidity during the repair work, MC’s new special polyurethane resin, MC-DUR LF 680 was used to replace the bridge waterproofing membrane.
5MC aktiv 2_2018 |
MC PersonaliaMC News
largely regardless of moisture and tem-
perature influences.
There were distinct signs of increasing deterioration in the walls and ceilings of two cham- bers of the potable water tank serving the district of Lozenets in the Bulgarian capital Sofia. The operator therefore decided to carry out a comprehensive overhaul of the facility, placing particular reliance on the per- formance capabilities of the MC-RIM PW product system.
The 90-year-old potable water sto-
rage tank in Sofia boasts an 18,500 m³
capacity and a turbulent past. Its
chambers defied the bombings of
the Second World War and survived
numerous earthquakes in the region
unscathed. But now the sands of time
had taken their toll, with the structure
so dilapidated that a thorough rehabil-
itation campaign was imperative for
its survival. MC had already coopera-
ted successfully in the past on the Rila
Water Supply Pipelines Project with
Sofiiska Voda, the local supplier and
operator of the facility, and had been
invited back in 2015 for an inspection
of the potable water tank together with
another specialist supplier.
numerous cracks, some of which had
already developed leaks and were water-
bearing. There were also fractured and
spalled areas and exposed reinforce-
ment, especially in the ceiling area.
Discounting a repair system based on
waterproof PE panels suggested by the
competitor bidder, the project plan-
ning company TIA Engineering and
representatives of Sofiiska Voda opted
for M C 's solution proposals instead.
Decisive factors included the prevailing
application conditions of only 6 – 8°
C due to the high humidity and low
ambient temperatures prevailing, and
panels in the caverns with their many
columns and different wall and ceiling
shapes presented a huge challenge.
Waterproofing perfection In June 2016, the chosen applicator
Opel Neshev started work on the rehab
project. The cracks were repaired using
MC-Injekt GL-95 TX, a low-viscosity, soft
and flexible sealing injection resin offer-
ing easy application at low temper-
atures. This meets the requirements
issued by the UBA (German Environ-
mental Agency) for repair systems in
contact with potable water and is best
suited for sealing joints, cracks, cavities
in masonry and concrete with perma-
nent water contact.
Hygienically sound For the further repair of the ceilings and
walls of the chambers, the project team
opted for the MC-RIM PW 20 concrete
replacement system and MC-RIM PW
10 special protective coating, which
have proven effectiveness in providing
enduring protection in the potable water
sector. The cement-bonded concrete
the wall and ceiling surfaces and in-
crease the concrete coverage. This was
followed by a finish with the mineral
surface protection coating MC-RIM
to water yet open to vapour diffusion.
Both chambers were thus successively
and successfully repaired to the abso-
lute satisfaction of the customer within
a period of just three months.
The cracks in the potable water tank were
repaired with MC-Injekt GL-95 TX, the
low-viscosity, soft-elastic injection resin
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The 90-year-old potable water storage tank in Sofia has been made fit for the future with proven injection and repair systems from MC.
MC AktuellMC News
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The 90-year-old potable water storage tank in Sofia has been made fit for the future with proven injection and repair systems from MC.
In Den Bosch in the Netherlands, a 7-screen multiplex cinema has been built to accommodate a total audience of around 1,000 people. Despite a very ambitious schedule, the cinema was able to keep to its opening date in summer 2018 – thanks not least to MC-FastKick 111, MC’s new hardening accelerator.
Kinepolis Den Bosch is a super-modern
multiplex cinema equipped with cut-
ting-edge laser projection techno-
Belgium, Canada, the Netherlands,
France, Spain, Luxembourg, Switzer-
Bosch was planned against a very
ambitious schedule. The client was
under time pressure and required con-
cretes with rapid strength develop-
ment so that the cast components
could be stripped on site and the con-
crete slabs smoothed as quickly and
early as possible. The chosen ready-
mixed concrete manufacturer Voets-
concrete formulation to help accel-
erate the construction process and
improve productivity. The challenge
consistency as it travelled from the
mixing plant to the installation site
and then to achieve rapid strength
development within the first few hours
to allow early smoothing.
MC-FastKick 111, a product launched
in 2017. The chloride-free hardening
accelerator initially has a strong lique-
fying effect, but then ensures rapid
hardening with controlled reduction
mortar. In addition to increased early
strength values, the new hardening
accelerator from MC also results in
higher final strengths due to a special
activation mechanism which causes
sion of up to two classes without
influencing the stiffening behaviour.
exerts a positive effect on the crystal
growth of the calcium silicate hydrate
phases in concrete. This leads to an
appreciable increase in the crystalli-
sation rate and significantly increas-
ed early strength values – without
negatively affecting the other con-
crete properties. The result is an early-
setting, high-strength concrete ideal
perties also make MC-FastKick 111
the perfect choice for winter con-
struction projects and for the precast
industry, where the major reduction
in cycle times is an obvious bene-
fit. The challenge during construc-
tion in Den Bosch was successfully
met thanks to these MC admixtures,
enabling the multiplex to open its
doors on June 25, 2018 as planned.
MC-FastKick – a cinema success
111, the state-of-the-art multiplex cinema
in Den Bosch was able to open as planned
on June 25, 2018.
The rapid setting and the increased early and final strengths achieved with MC-FastKick make it the first choice for both precast production and winter construction projects as well as
for projects with highly ambitious schedules like the construction of the large multiplex cinema in Den Bosch.
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7MC aktiv 2_2018 |
© Xavier den Dekker
While it may appear rather strange at
first glance, 3D printing is one of the
major technology-related topics of
tors worldwide are looking for new
concepts to help create a building
process that is as quick, cost-effec-
tive and environmentally friendly as
possible. This applies as much to the
sprawling metropolises of industri-
geoning megacities of developing
in Germany, there are a significant
number of research and develop-
ment projects aimed at creating a
3D concrete printing process suitable
for mass production. For example,
"Beton3D-Druck” [Concrete 3D Print-
tion process as part of the “Zukunft-
Bau” [Future of Building] funding pro-
gramme run by the Federal Institute
for Research on Building, Urban Affairs
and Spatial Development. MC’s spe-
cialists are providing concrete tech-
nology know-how and support to…
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